Is this a reason for her weak health. Here the chart:
Ill health doesn’t automatically come with this opposition. A psychological fallout from feelings of disappointment and inability to fully trust both her origins/parents and her life purpose can affect health of the native with Neptune Saturn opposition. Especially now while transiting Neptune is squaring both, she may experience lack of faith and vision, and also have problems with her feet and knees. With this aspect she is probably a born skeptic, so some non-traditional forms of spirituality, including charity and charitable work, but also meditations could help. With Saturn in Gemini and 3rd, some breathing techniques will certainly help.
Hope this helped